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首页> 外文期刊>Bioenergy research >Ploidy Level Affects Important Biomass Traits of Novel Shrub Willow (Salix) Hybrids
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Ploidy Level Affects Important Biomass Traits of Novel Shrub Willow (Salix) Hybrids

机译：倍性水平影响新型灌木柳（Salix）杂种的重要生物量性状

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摘要

Polyploidy is a common observation in the genus Salix, including some of the shrub willow species currently being bred as a potential bioenergy feedstock. Breeding of shrub willow has produced new species hybrids, among which a disproportionate number of high-yielding genotypes are triploid, produced from crosses between diploid and tetraploid parents. These novel hybrids display significant variation in biomass compositional quality, including differences according to ploidy. The triploid and tetraploid genotypes possess lower lignin content than diploid genotypes. Biomass composition was also significantly different across the 3-year growth cycle typical of bioenergy plantings. There were differences in syringyl/guaiacyl (S:G) lignin ratios among the 75 genotypes examined, in addition to significant correlations with willow growth traits, yield, and composition. These differences suggest that a long-term strategy of breeding for triploid progeny will generate cultivars with improved growth traits and wood composition for conversion to biofuels.
机译：多倍体是柳属植物中的常见现象，其中包括目前正在育种的一些灌木柳树种，它们是潜在的生物能源原料。灌木柳的育种产生了新的物种杂种，其中不成比例的高产基因型是三倍体，是由二倍体和四倍体亲本杂交产生的。这些新型杂种显示出生物量组成质量的显着变化，包括根据倍性的差异。三倍体和四倍体基因型的木质素含量低于二倍体基因型。在生物能源种植的3年生长周期中，生物量组成也存在显着差异。除了与柳树生长特性，产量和组成的显着相关性外，在所检查的75个基因型中，丁香基/愈创木基（S：G）木质素比率也存在差异。这些差异表明，三倍体后代的长期育种策略将产生具有改善的生长性状和木材组成的品种，以转化为生物燃料。

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  • 来源
    《Bioenergy research》 |2015年第1期|259-269|共11页
  • 作者

    Michelle J. Serapiglia; Fred E. Gouker; J. Foster Hart; Faride Unda; Shawn D. Mansfield; Arthur J. Stipanovic; Lawrence B. Smart;

  • 作者单位

    1.Department of Horticulture New York State Agricultural Experiment Station Cornell University 630 West North Street Geneva NY 14456 USA 4.Sustainable Biofuels and Coproducts Research Unit Eastern Regional Research Center USDA—ARS 600 East Mermaid Lane Wyndmoor PA 19038 USA;

    1.Department of Horticulture New York State Agricultural Experiment Station Cornell University 630 West North Street Geneva NY 14456 USA;

    2.Department of Wood Science Forest Sciences Centre University of British Columbia Vancouver BC V6T 1Z4 Canada;

    2.Department of Wood Science Forest Sciences Centre University of British Columbia Vancouver BC V6T 1Z4 Canada;

    2.Department of Wood Science Forest Sciences Centre University of British Columbia Vancouver BC V6T 1Z4 Canada;

    3.Department of Chemistry State University of New York College of Environmental Science and Forestry Syracuse NY 13210 USA;

    1.Department of Horticulture New York State Agricultural Experiment Station Cornell University 630 West North Street Geneva NY 14456 USA;

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  • 正文语种 eng
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  • 关键词

    Biofuel feedstock Cellulose Lignin Polyploid Wood composition;

    机译：生物燃料原料纤维素木质素多倍体木材组成;

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